Frequency dependent residual sideband indications

Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a frequency dependent residual sideband (FDRSB) indication that indicates an average FDRSB power level associated with at least one transmission antenna of a network node. The UE may receive a communication from the network node, the receiving comprising demodulating the communication based on a state of an FDRSB correction function of the UE, the state of the FDRSB correction function being based on at least one of the average FDRSB power level or an estimated total noise level. Numerous other aspects are described.

What is claimed is: 
     
       1. An apparatus for wireless communication at a user equipment (UE), comprising:
 a memory; and 
 one or more processors, coupled to the memory, that, based at least in part on information stored in the memory, are configured to:
 receive a frequency dependent residual sideband (FDRSB) indication that indicates an average FDRSB power level associated with at least one transmission antenna of a network node; and 
 receive a communication from the network node, the receiving comprising demodulating the communication based on a state of an FDRSB correction function of the UE, the state of the FDRSB correction function being based on at least one of the average FDRSB power level or an estimated total noise level. 
 
 
     
     
       2. The apparatus of  claim 1 , wherein the one or more processors, to receive the FDRSB indication, are configured to receive, by the UE, a communication that includes the FDRSB indication, the communication comprising at least one of a medium access control control element, a radio resource control message, a physical downlink control channel communication, or a physical downlink shared channel communication. 
     
     
       3. The apparatus of  claim 1 , wherein the state of the FDRSB correction function comprises a deactivated state based on the average FDRSB power level being less than an estimated channel thermal noise level. 
     
     
       4. The apparatus of  claim 3 , wherein the estimated channel thermal noise level comprises a difference between an estimated total noise level and the average FDRSB power level. 
     
     
       5. The apparatus of  claim 3 , wherein the state of the FDRSB correction comprises the deactivated state based on a difference between the average FDRSB power level and the estimated channel thermal noise level satisfying a difference threshold. 
     
     
       6. The apparatus of  claim 1 , wherein the state of the FDRSB correction function comprises an activated state based on the average FDRSB power level being greater than or equal to an estimated channel thermal noise level. 
     
     
       7. The apparatus of  claim 1 , wherein the state of the FDRSB correction function comprises an activated state based on a difference between the average FDRSB power level and an estimated thermal noise level failing to satisfy a difference threshold. 
     
     
       8. The apparatus of  claim 1 , wherein the state of the FDRSB correction function comprises an activated state based on a priority associated with power saving being lower than a priority associated with throughput. 
     
     
       9. The apparatus of  claim 1 , wherein the state of the FDRSB correction function comprises an activated state based on a determination that activation of the FDRSB correction function corresponds to an increased signal-to-noise ratio based on the average FDRSB power level. 
     
     
       10. The apparatus of  claim 1 , wherein the one or more processors are further configured to transmit a modulation and coding scheme (MCS) indication that indicates an updated MCS to be used for transmitting the communication. 
     
     
       11. The apparatus of  claim 1 , wherein the state of the FDRSB correction function comprises a deactivated state based on the estimated total noise level satisfying a total noise threshold. 
     
     
       12. The apparatus of  claim 11 , wherein the state of the FDRSB correction function comprises the deactivated state further based on a priority associated with power saving being higher than a priority associated with throughput. 
     
     
       13. The apparatus of  claim 1 , wherein the average FDRSB power level is based on a first measured FDRSB function associated with a first half band signal corresponding to a first half of a bandwidth and a second measured FDRSB function associated with a second half band signal corresponding to a second half of the bandwidth. 
     
     
       14. An apparatus for wireless communication at a network node, comprising:
 a memory; and 
 one or more processors, coupled to the memory, that, based at least in part on information stored in the memory, are configured to:
 obtain an average frequency dependent residual sideband (FDRSB) power level associated with at least one transmission antenna of the network node; and 
 transmit an FDRSB indication that indicates the average FDRSB power level. 
 
 
     
     
       15. The apparatus of  claim 14 , wherein the one or more processors are further configured to:
 receive a modulation and coding scheme (MCS) indication that indicates an updated MCS to be used for transmitting a communication; and 
 transmit the communication using the updated MCS. 
 
     
     
       16. The apparatus of  claim 14 , wherein the average FDRSB power level is based on a first measured FDRSB function associated with a first half band signal corresponding to a first half of a bandwidth and a second measured FDRSB function associated with a second half band signal corresponding to a second half of the bandwidth. 
     
     
       17. A method of wireless communication performed by a user equipment (UE), comprising:
 receiving, by the UE, a frequency dependent residual sideband (FDRSB) indication that indicates an average FDRSB power level associated with at least one transmission antenna of a network node; and 
 receiving, by the UE, a communication from the network node, the receiving comprising demodulating the communication based on a state of an FDRSB correction function of the UE, the state of the FDRSB correction function being based on at least one of the average FDRSB power level or an estimated total noise level. 
 
     
     
       18. The method of  claim 17 , wherein receiving the FDRSB indication comprises receiving, by the UE, a communication that includes the FDRSB indication, the communication comprising at least one of a medium access control control element, a radio resource control message, a physical downlink control channel communication, or a physical downlink shared channel communication. 
     
     
       19. The method of  claim 17 , wherein the state of the FDRSB correction function comprises a deactivated state based on the average FDRSB power level being less than an estimated channel thermal noise level. 
     
     
       20. The method of  claim 19 , wherein the estimated channel thermal noise level comprises a difference between an estimated total noise level and the average FDRSB power level. 
     
     
       21. The method of  claim 19 , wherein the state of the FDRSB correction comprises the deactivated state based on a difference between the average FDRSB power level and the estimated channel thermal noise level satisfying a difference threshold. 
     
     
       22. The method of  claim 17 , wherein the state of the FDRSB correction function comprises an activated state based on the average FDRSB power level being greater than or equal to an estimated channel thermal noise level. 
     
     
       23. The method of  claim 17 , wherein the state of the FDRSB correction function comprises an activated state based on a difference between the average FDRSB power level and an estimated thermal noise level failing to satisfy a difference threshold. 
     
     
       24. The method of  claim 17 , wherein the state of the FDRSB correction function comprises an activated state based on a priority associated with power saving being lower than a priority associated with throughput. 
     
     
       25. The method of  claim 17 , wherein the state of the FDRSB correction function comprises an activated state based on a determination that activation of the FDRSB correction function corresponds to an increased signal-to-noise ratio based on the average FDRSB power level. 
     
     
       26. The method of  claim 17 , further comprising transmitting, by the UE, a modulation and coding scheme (MCS) indication that indicates an updated MCS to be used for transmitting the communication. 
     
     
       27. The method of  claim 17 , wherein the state of the FDRSB correction function comprises a deactivated state based on the estimated total noise level satisfying a total noise threshold, and wherein the state of the FDRSB correction function comprises the deactivated state further based on a priority associated with power saving being higher than a priority associated with throughput. 
     
     
       28. The method of  claim 17 , wherein the average FDRSB power level is based on a first measured FDRSB function associated with a first half band signal corresponding to a first half of a bandwidth and a second measured FDRSB function associated with a second half band signal corresponding to a second half of the bandwidth. 
     
     
       29. A method of wireless communication performed by a network node, comprising:
 obtaining, by the network node, an average frequency dependent residual sideband (FDRSB) power level associated with at least one transmission antenna of the network node; and 
 transmitting, by the network node, an FDRSB indication that indicates the average FDRSB power level. 
 
     
     
       30. The method of  claim 29 , further comprising:
 receiving, by the network node, a modulation and coding scheme (MCS) indication that indicates an updated MCS to be used for transmitting a communication; and 
 transmitting the communication using the updated MCS.